SS-EN-ISO-18218-2 › Leather - Determination of ethoxylated alkylphenols - Part 2: Indirect method (ISO 18218-2:2019)
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This document specifies a method for determining alkylphenols (nonylphenol and octylphenol) and alkylphenol ethoxylates (nonylphenol ethoxylate and octylphenol ethoxylate) in leather and process auxiliaries. The analysis is based on high-performance liquid chromatography (HPLC) or gas chromatography-mass spectrometry (GC-MS). The analysis of the alkylphenol ethoxylate is made by cleaving the alkylphenol ethoxylate and measuring the released alkylphenol. NOTE ISO 18218-1 and this document use different solvents for the extraction of the ethoxylated alkylphenols from leather. Consequently, the two analytical methods are expected to give similar trends but not necessarily the same absolute result for the ethoxylated alkylphenol content in leather.
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59.140.99 (Other standards related to leather technology)
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Designation Name
SS-EN ISO 18218-2:2019
Revision Level
2019 EDITION
Status
Current
Publication Date
July 15, 2019
Language(s)
English
Page Count
28
International Equivalent
EN ISO 18218-2:2019(IDT); ISO 18218-2:2019(IDT)